json-string-values-parser

Recursively traverse JSON properties and call transformation function on the value.

Example

import { jsonParseStringValues } from "json-string-values-parser";

const source = {
  a: "1",
  b: "false",
  c: "string",
  d: "null",
  e: "undefined",
};

const result = jsonParseStringValues(source);

console.log(result);

/*
{
  a: 1,
  b: false,
  c: "string",
  d: null,
  e: "undefined",
}
*/

Install

npm install json-string-values-parser

API

Function

import { jsonParseStringValues } from "json-string-values-parser";

jsonParseStringValues(source, options); // options is optional

Class instantiation

import { JsonStringValuesParser } from "json-string-values-parser";

const parser = new JsonStringValuesParser(options); // options is optional

parser.parse(source);

Options

All options are optional.

options.nullValues: string[] | false

String values converted to null.

• If set to false, conversion won't happen.
• If omitted, JSON.parse will be applied ("null" will become null).
• If passed array, only values from the array will be converted to null.

options.falseValues: string[] | false

String values converted to false.

• If set to false, conversion won't happen.
• If omitted, JSON.parse will be applied ("false" will become false).
• If passed array, only values from the array will be converted to false.

options.trueValues: string[] | false

String values converted to true.

• If set to false, conversion won't happen.
• If omitted, JSON.parse will be applied("true" will become true).
• If passed array, only values from the array will be converted to true.

options.parseNumbers: boolean

default: true

Try to convert string to number using JSON.parse method.

options.arrayDelimiter

Array delimiter. If set, string will be splitted into array by given pattern(s). Array values will be parsed again.

jsonParseStringValues("1, 2, 3", { arrayDelimiter: ", " });
// returns [1, 2, 3]

License

Licensed under the MIT license. Copyright (c) 2023-present Vladislav Alexeev